September weather forecast
Jackson, WI

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Weather in September

September, the first month of the autumn in Jackson, is also an agreeable month, with an average temperature fluctuating between 70.2°F (21.2°C) and 54.1°F (12.3°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's warm 76.3°F (24.6°C) to an agreeable 70.2°F (21.2°C). Jackson records a consistent low-temperature of 54.1°F (12.3°C) during September nights.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, in Jackson, the rain falls for 12.3 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, in Jackson, there are 139.5 rainfall days, and 26.77" (680mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Jackson is 12h and 29min.
On the first day of September, sunrise is at 6:17 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:35 pm CDT.

Sunshine

In September, the average sunshine in Jackson is 9.1h.

UV index

In September, the average daily maximum UV index in Jackson, Wisconsin, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Jackson in September?

The average high-temperature and low-temperature in Jackson, Wisconsin, during September are 70.2°F (21.2°C) and 54.1°F (12.3°C) respectively.

What is the average humidity in September in Jackson?

In September, the average relative humidity is 80%.

How many days does it rain in September in Jackson?

In Jackson, in September, during 12.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Jackson?

May through September are months without snowfall in Jackson.

Does it snow in Jackson in September?

In Jackson, Wisconsin, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Jackson have in September?

In September, the average day length in Jackson, Wisconsin, is 12h and 29min.

When are sunrise and sunset in September in Jackson?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:27 pm. On the last day of the month, in Jackson, sunrise is at 6:49 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Jackson have in September?

The average sunshine duration in September in Jackson is 9.1h.

How high is the UV index in September in Jackson?

In Jackson, Wisconsin, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jackson, WI

Average temperature in September - Jackson, WI
  • Average high temperature in September: 70.2°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (24.8°F).

  • Average low temperature in September: 54.1°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (14°F).

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Average pressure in September
Jackson, WI

Average pressure in September - Jackson, WI
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Jackson, WI

Average wind speed in September - Jackson, WI
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in September
Jackson, WI

Average humidity in September - Jackson, WI
  • Average humidity in September: 80%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (77%).

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Average rainfall in September
Jackson, WI

Average rainfall in September - Jackson, WI
  • Average rainfall in September: 2.24"

The wettest months (with the highest rainfall) are May and June (3.19").
The driest month (with the least rainfall) is February (1.1").

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Average rainfall days in September
Jackson, WI

Average rainfall days in September - Jackson, WI
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in September
Jackson, WI

Average snowfall in September - Jackson, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Jackson, WI

Average snowfall days in September - Jackson, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Jackson, WI

Average daylight in September / Average sunshine in September - Jackson, WI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in September
Jackson, WI

Average sunshine days in September - Jackson, WI
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is April (11.4 days).

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Average UV index in September
Jackson, WI

Average UV index in September - Jackson, WI
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in September
Jackson, WI

Average cloud cover in September - Jackson, WI
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in September
Jackson, WI

Average visibility in September - Jackson, WI
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Jackson, Wisconsin, USA

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